Months after her husband, Sean is killed by a hit-and-run driver; physicist Georgie Brennan discovers he lied to her about where he had been going that day. A cryptic notebook, a missing computer, and strange noises under her house soon have her questioning everything she thought she knew. With her job hanging by a thread, her son struggling to cope with his father's death, and her four-star general father up for confirmation as the next Secretary of Defense, Georgie quickly finds herself tangled in a political intrigue that has no clear agenda and dozens of likely villains. Only one thing is clear: someone wants her dead too.